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Prop size question

#1
Hi guys and gals,

Quick question.

For power pack C with Emax 2215 1100kv will a Master Airscrew 9x6 electric only prop work? I know the rule of thumb is step up/down pitch when moving size up/down. Was using slow flier 10x4.5. I would think a 9x6 will be fine, but wanted to ask anyway.

Thanks,

Mike
 

kdobson83

Active member
#4
I think they recommend the 9x6 if your on a 4s battery. If your running a 3s battery, the 10x4.5 is recommended for Max power/efficiency. But it will do fine on the 9x6 on 3s as well, you just won't have the torque or max power. Could have a bit faster top speed tho.
 
#5
I think they recommend the 9x6 if your on a 4s battery. If your running a 3s battery, the 10x4.5 is recommended for Max power/efficiency. But it will do fine on the 9x6 on 3s as well, you just won't have the torque or max power. Could have a bit faster top speed tho.
Thank you for the reply!

I just had a few MAS 9x6 electric props laying around (I have a box full of props, lol) and thought it looked better than the slow flier. My son and I built the Spitfire. We have a 2 1/4 spinner and the MAS prop looks better IMO. I have about 5 or 6 of the 10x4.5 slow fliers if we do not like the 9x6. :)